Table 1 Basic description of the floating elderly population

Individual characteristic variable

Sex (female = 0)

0.577

0.494

1

0

0

0

Age

65.91

5.512

66.04

5.657

65.74

5.304

Hukou (non-agricultural = 0)

0.564

0.496

0.573

0.495

0.551

0.497

Marital status (without spouse = 0)

0.842

0.365

0.900

0.300

0.763

0.425

Primary education and below (other = 0)

0.479

0.500

0.406

0.491

0.579

0.494

Junior high school education (other = 0)

0.301

0.459

0.349

0.477

0.235

0.424

High school education and above (other = 0)

0.220

0.415

0.245

0.430

0.187

0.390

Socioeconomic characteristic variable

Personal income

8.325

0.910

8.329

0.872

8.320

0.960

Insured status (not attend = 0)

0.654

0.476

0.641

0.480

0.672

0.469

Flow characteristic variable

Mobility range

Interprovincial mobility(other = 0)

0.442

0.497

0.442

0.497

0.442

0.497

Intercity mobility(other = 0)

0.346

0.476

0.345

0.476

0.347

0.476

Intercounty mobility(other = 0)

0.212

0.409

0.212

0.409

0.211

0.408

Mobility reason

Working or doing business(other = 0)

0.346

0.476

0.452

0.498

0.202

0.401

Caring for children(other = 0)

0.406

0.491

0.301

0.459

0.549

0.498

Flowing for aged-care(other = 0)

0.136

0.343

0.141

0.348

0.130

0.337

Other flow reason

0.112

0.315

0.106

0.308

0.119

0.324

Mobility time

10.02

8.120

10.20

8.465

9.764

7.619

In-flows region

Eastern region

0.405

0.491

0.397

0.489

0.416

0.493

Middle region

0.290

0.454

0.285

0.452

0.298

0.457

Western region

0.305

0.460

0.318

0.466

0.286

0.452

Sample size

5239

3034

2205